My version.
Gang enforcer and protection collector visit store to remind owner to pay protection.
Customer calls police. Gang members walk down middle of street like they own it,come across cop not on take, try to scare him, he is not impressed and tries to shoot in car.
Gang members walk away and are annoyed when police officer exits car and wants to arrest them. One gang member charges at police officer thinking that will scare him. It takes multiple shots to stop attacking gang member.
Gang ups protection fees. Businesses that didn’t pay get burned down.